CN113015136B - Parking network switching method and device, movable carrier and storage medium - Google Patents

Parking network switching method and device, movable carrier and storage medium Download PDF

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Publication number
CN113015136B
CN113015136B CN202110353279.1A CN202110353279A CN113015136B CN 113015136 B CN113015136 B CN 113015136B CN 202110353279 A CN202110353279 A CN 202110353279A CN 113015136 B CN113015136 B CN 113015136B
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network
target
server
internet
parking
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CN113015136A (en
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陈广庆
徐欣奕
韩旭
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Dongfeng Motor Corp
Guangzhou Weride Technology Co Ltd
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Dongfeng Motor Corp
Guangzhou Weride Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data

Abstract

The invention belongs to the technical field of automatic driving, and discloses a parking network switching method, a parking network switching device, a movable carrier and a storage medium. When the movable carrier enters the parking place, the connection with the server side is established according to the Internet of things card with the best network condition, and the server side feeds back the accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, the phenomenon that the movable carrier cannot carry out normal network information due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.

Description

Parking network switching method, device, mobile carrier and storage medium
Technical Field
The invention relates to the technical field of automatic driving, in particular to a parking network switching method, a parking network switching device, a movable carrier and a storage medium.
Background
With the development of the automatic driving technology, driving scenes faced by a movable carrier are more complex, and the automatic driving benefits from the development of the wireless communication technology, solvable scenes are more and more, but the driving of the movable carrier needs to keep stable network communication, and under some scenes with severe networks, the movable carrier with a single internet of things card often loses packets or even breaks connections at places where signals are not good. The application of a disconnection reconnection takes at least a few seconds and is very dangerous for movable carriers.
Disclosure of Invention
The invention mainly aims to provide parking network switching, a parking network switching device, a movable carrier and a storage medium, and aims to solve the technical problem that danger is caused by the fact that the movable carrier in a parking place is poor in signal and needs to be reconnected in the prior art.
In order to achieve the above object, the present invention provides a parking network switching method, including the steps of:
when a target movable carrier is in a parking place, detecting current signal bandwidth information of each Internet of things card on the target movable carrier;
selecting a target Internet of things card from all the Internet of things cards according to the current signal bandwidth information;
establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information;
detecting a current accessible network and acquiring information of the current accessible network;
and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection.
Optionally, the step of establishing a first network connection with a server through the target internet of things card, and switching the first network connection to a main connection so that the server feeds back target network connection information includes:
acquiring a current position of the target movable carrier;
sending the current position to a remote server so that the remote server feeds back server information corresponding to the parking place and a parking area network diagram;
and establishing a first network connection with the server according to the server information, and switching the first network connection as a main connection so that the server feeds back target network connection information.
Optionally, after the step of establishing a first network connection with the server according to the server information and switching the first network connection to be a main connection so that the server feeds back the parking target network connection information, the method further includes:
generating a parking instruction according to the current position;
sending the parking instruction to the server so that the server determines a target parking area, generating a driving route according to the parking instruction and the target parking area, and feeding back the driving route;
determining an Internet of things card switching point on the driving line according to the parking area network map;
and determining each target Internet of things network segment on the driving route according to the Internet of things network switching points.
Optionally, after the step of sending the parking instruction to the server to enable the server to determine a target parking area, generate a driving route according to the parking instruction and the target parking area, and feed back the driving route, the method further includes:
controlling the target movable carrier to travel to the target parking area according to the travel route;
acquiring area signal bandwidth information of each Internet of things card of a target movable carrier in the target parking area;
and sending the region signal bandwidth information to the server, so that the server updates the network weight value of each Internet of things card corresponding to the target parking region according to the region bandwidth information, updates the effective coverage range of each Internet of things card in the parking place according to the network weight value and the historical network weight values of other parking regions, and updates the parking region network map according to the effective coverage range.
Optionally, after the step of determining each target internet of things network segment on the driving route according to the internet of things network switching point, the method further includes:
determining a next target Internet of things card according to the current position and each target Internet of things card section;
establishing a third network connection between the next target Internet of things card and the server so that the server sends a remote control request to the remote control end and feeds back a remote control verification request;
and sending the remote control authentication information of the next target Internet of things card to the server according to the remote control verification request so as to establish remote control pre-connection between the remote control end and the next target Internet of things card through the server.
And when the target movable carrier reaches the next target Internet of things network segment, switching the third network connection into the first network connection.
Optionally, after the step of establishing a second network connection with the server through the current accessible network and switching the second network connection to a primary connection when the target network connection information is successfully matched with the current accessible network information, the method further includes:
sending a remote data transmission instruction to the server side so that the server side sends a remote data transmission request to the remote control side and feeds back a remote data transmission verification request;
and sending remote data transmission authentication information to the server side according to the remote data transmission verification request so that the remote control side establishes remote data transmission pre-connection with the target movable carrier through main connection.
Optionally, after the step of establishing a second network connection with the server through the current accessible network and switching the second network connection to a primary connection when the target network connection information is successfully matched with the current accessible network information, the method includes:
acquiring transmission power information of a preset parking place;
setting the transmission power of a target Internet of things card corresponding to the current first network connection as a first transmission power according to the transmission power information of the preset parking place;
and setting the transmission power of other Internet of things cards as second transmission power according to the transmission power information of the preset parking place so as to establish fourth network connection between the other Internet of things cards and the server.
In addition, to achieve the above object, the present invention also provides a parking network switching device, including:
the detection module is used for detecting the current signal bandwidth information of each Internet of things card on the target movable carrier when the target movable carrier is in a parking place;
the selection module is used for selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information;
the establishing module is used for establishing first network connection with a server through the target Internet of things card and switching the first network connection to be main connection so as to enable the server to feed back target network connection information;
the acquisition module is used for detecting the current accessible network and acquiring the information of the current accessible network;
and the matching module is used for establishing a second network connection with the server through the current accessible network and switching the second network connection to be a main connection when the target network connection information is successfully matched with the current accessible network information.
In addition, to achieve the above object, the present invention also provides a movable carrier including: a memory, a processor and a parking network switching program stored on the memory and executable on the processor, the parking network switching program being configured to implement the steps of the parking network switching method as described above.
In addition, to achieve the above object, the present invention further provides a storage medium having a parking network switching program stored thereon, where the parking network switching program, when executed by a processor, implements the steps of the parking network switching method as described above.
When a target movable carrier is in a parking place, detecting current signal bandwidth information of each Internet of things card on the target movable carrier; selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information; establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information; detecting a current accessible network and acquiring information of the current accessible network; and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection. Through the mode, when the movable carrier enters the parking place, the connection with the server side is established according to the Internet of things card with the best network condition, and the server side feeds back the accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, the situation that the movable carrier cannot carry out normal network information due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.
Drawings
Fig. 1 is a schematic flow chart of a parking network switching method according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating step S30 of the parking network switching method according to the second embodiment of the present invention;
FIG. 3 is a diagram of an effective coverage area of an embodiment of a parking network switching method according to the present invention;
fig. 4 is a flowchart illustrating the parking network switching method according to the third embodiment of the present invention after step S305;
FIG. 5 is a network weight graph illustrating a parking network switching method according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating the parking network switching method according to the fourth embodiment of the present invention after step 50;
fig. 7 is a block diagram showing the configuration of the parking network switching apparatus according to the first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a removable carrier of a hardware operating environment according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides a parking network switching method, and referring to fig. 1, fig. 1 is a flowchart illustrating a first embodiment of a parking network switching method according to the present invention.
In this embodiment, the parking network switching method includes the following steps:
step S10: and when the target movable carrier is in a parking place, detecting the current signal bandwidth information of each Internet of things card on the target movable carrier.
It should be noted that the execution main body of this embodiment may be a control terminal on the target mobile carrier, an operating system is operated on the control terminal, so as to implement a function customized by a manufacturer or a user, and the target mobile carrier may be installed with a plurality of internet of things cards of different network operators and different frequency band bandwidths, for example, 4G and 5G internet of things cards of different operators. The movable carrier has various expressions, such as a carrier with moving capability of an automobile, a robot, an aircraft and the like.
It can be understood that the target mobile carrier is always connected to the remote server and uploads its own positioning data in real time, or uploads its own positioning data to the remote server at intervals, so that the remote server can determine the position of the target mobile carrier. The remote server can be a remote server, and after the target mobile carrier is accessed to the Internet through the Internet of things card, only a private network IP (Internet protocol) distributed by the NAT is used, a remote can not directly access the control center with the firewall protection, and the firewall of the network inlet of the control center is mapped to the remote server through a certain port, so that the target mobile carrier can access the server through the public network IP.
It should be understood that the parking place can be an above-ground parking place, an below-ground parking place, and the embodiment is not limited.
It is easily understood that since the parking lot is a gathering place of the mobile carriers, the environment is complicated, and most of underground parking lots have poor performance in a mobile network, and the target mobile carriers driven automatically may increase the possibility of accidents in such an environment, the target mobile carriers need to maintain good network connection in the parking lot to support remote control of the remote control. When the target movable carrier detects that the target movable carrier is located in a parking place, the internet of things card with the best current network condition needs to be selected to establish connection with a server side arranged in the parking place, so that signal bandwidth information of each internet of things card at the current position needs to be detected, and the signal bandwidth information comprises information such as signal intensity, bandwidth rate and the like.
In specific implementation, the server is a server arranged in a parking place, and the parking place in each area of the city corresponds to different servers, so that the time of information transmission is reduced when information interaction is carried out on the mobile carrier.
Step S20: and selecting a target Internet of things card from the Internet of things cards according to the current signal bandwidth information.
It should be noted that, the target mobile carrier may select the internet of things card with the best current network performance as the target internet of things card, for example: when a certain target movable carrier detects that the target movable carrier is in a parking place, the signal intensity of an A Internet of things card is detected to be-60 dBm, the bandwidth rate is 40Mbps, the signal intensity of a B Internet of things card is-80 dBm, the bandwidth rate is 30Mbps, the signal intensity of a C Internet of things card is-70 dBm, the bandwidth rate is 35Mbps, and at the moment, the A Internet of things card with the best network performance at the current position in all the Internet of things cards is selected to establish network connection with a service end.
Step S30: and establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information.
It can be understood that, when the mobile object has not driven into the parking lot, the mobile object carrier has already established a main connection with the remote server for information interaction with the remote server, but the network conditions outside the parking lot may not be the same as those inside the parking lot, and in order to achieve better remote support in the parking lot, it is necessary to establish a first network connection with the server corresponding to the parking area, and use the first network connection as the main connection for information interaction with the server. For example: when the mobile carrier is outside a parking place, the Internet of things card A is used for keeping connection with a remote server, but after the target mobile carrier drives into the parking place, the Internet of things card B is detected to be the Internet of things card with the best network performance in all the Internet of things cards, the Internet of things card B is used for establishing first network connection with the server, and the first network connection is switched into main connection, so that information interaction with the server is facilitated.
It is easy to understand that, because the network service of the underground parking lot is limited, in order to further increase the safety of automatic driving and maintain smooth network connection, a target network dedicated to the connection of the target mobile carrier and the service end needs to be established in the parking lot, for example, a network based on IEEE802.11 standard, and because the range of the parking lot is large, a mesh networking technology can be used to establish a plurality of sub-routes in the parking lot, so as to achieve the purpose of covering all areas of the parking lot. But simultaneously, in order to avoid the sudden failure of communication network, consequently also can not cut off the connection of thing networking card and remote service end, use dual guarantee, further promoted the security of autopilot. For example: outside the parking place, the A Internet of things card is connected with the remote server, after entering the parking place, the A Internet of things card is connected with the preset WiFi in the parking place so as to establish main connection with the server, at the moment, the A Internet of things card is not disconnected with the remote server, but keeps low-power connection, when the WiFi breaks down, the power of the A Internet of things card is improved, and the A Internet of things card is switched to be connected with the main connection of the remote server again.
Step S40: and detecting a current accessible network and acquiring the information of the current accessible network.
It should be noted that, after learning that the target mobile carrier establishes a connection using the internet of things card, the server sends target network connection information corresponding to the parking place to the target mobile carrier, where the target network connection information includes a Service Set Identifier (SSID), a wireless Access Point (Access Point, AP), a shared secret key, and the like.
It is understood that the currently accessible network information includes SSID, AP, shared key, etc. information.
It should be understood that when the target mobile carrier enters the parking place, the target mobile carrier has entered the area covered by the target network, so that the target mobile carrier can scan the current accessible network list to select the target network.
Step S50: and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection.
In a specific implementation, a target network consistent with the target network connection information is selected from the currently accessible network, and after the target mobile terminal performs access, authentication and other processes with the target network through the target network connection information, the target mobile terminal is successfully connected with a network device in a parking place, where the network device may be a wireless router, and this embodiment is not limited. The network device is an intermediate device for enabling the target mobile carrier to perform network connection with the service end, and the network device and the service end may communicate using an optical fiber, which is not limited in this embodiment.
It is easy to understand that, after the target mobile bearer performs the second network connection with the server through the target network, and the network status of the second network connection is better, the second network connection may be selected as the main connection, and the second network connection is used to perform the main information communication with the server.
It should be noted that, after switching different network connections to a main connection, if the main connection is abnormal, the internet of things card needs to be used to reestablish a connection with the server, which causes network delay and potential safety hazard, and therefore, step S50 includes: acquiring transmission power information of a preset parking place; setting the transmission power of a target Internet of things card corresponding to the current first network connection as a first transmission power according to the transmission power information of the preset parking place; and setting the transmission power of other Internet of things cards as second transmission power according to the transmission power information of the preset parking place so as to establish fourth network connection between the other Internet of things cards and the server.
It should be understood that the preset parking lot transmission power includes transmission power of the main internet of things card when the parking lot and the server transmit data. After receiving the information of the server, all the Internet of things cards can be connected with the server, the target Internet of things card with the best network state is connected with the server in a first network mode, other Internet of things cards are connected with the server in a fourth network mode, the power of the first network connection is first transmission power, and the power of the fourth network connection is second transmission power.
In a specific implementation, the movable carrier does not only establish the first network connection with the server through the target internet of things card, but other internet of things cards keep low-power connection, so that the phenomenon that the connection with the server is lost due to network faults of the target internet of things card is avoided. For example: the target movable carrier keeps first network connection with the server side by using the A Internet of things card, the power of the A Internet of things card is 30 dBm-1W, and the power of the B, C Internet of things card is 5 dBm-3.2 mW of second transmission power.
It can be understood that all connections can be based on Web Socket Security (WSS), and the WSS has a bidirectional authentication and reliable encryption function, and can further improve the information interaction security between the target mobile carrier and the server.
In the embodiment, when a target movable carrier is in a parking place, current signal bandwidth information of each internet of things card on the target movable carrier is detected; selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information; establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information; detecting a current accessible network and acquiring information of the current accessible network; and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection. Through the mode, when the movable carrier enters the parking place, the connection with the server side is established according to the Internet of things card with the best network condition, and the server side feeds back the accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, the situation that the movable carrier cannot carry out normal network information due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.
Referring to fig. 2, fig. 2 is a flowchart illustrating a parking network switching method according to a second embodiment of the present invention.
In this embodiment, step S30 includes:
step 301: acquiring a current location of the target movable carrier.
It should be noted that, the position of the target mobile carrier itself can be monitored in real time, and by using a global positioning system or a beidou satellite navigation system, when the target mobile carrier is an above-ground parking place, the navigation positioning signal is good, but when the target mobile carrier is out of an underground parking place, the signal of the navigation positioning system is weak, and the real-time navigation positioning data cannot be provided, so that when the target mobile carrier enters the underground parking place, the positioning data of the entrance of the parking place can be acquired, and then the position information of the target mobile carrier itself can be calculated and acquired according to a navigation speculation (Dead Reckoning) algorithm.
It is understood that, because the positioning data may be delayed in the underground parking lot and not every positioning data can reflect the current position of the target mobile carrier in real time, effective positioning data with a delay less than a predetermined value may be selected, for example, when the predetermined delay is 100 ms, the effective positioning data is indicated when the delay of the positioning data is less than 100 ms. The effective positioning data and the navigation conjecture algorithm are combined to correct the positioning of the target movable carrier, so that the positioning can be accurately carried out in an underground parking place with poor positioning signals.
Step 302: and sending the current position to a remote server so that the remote server feeds back server information corresponding to the parking place and a parking area network diagram.
It should be noted that, in order to connect the server corresponding to the parking place where the target mobile carrier is located, the server information corresponding to the server is required to be sent to the target mobile carrier, where the server information includes information such as an IP address, a login name, and a password, which is not limited in this embodiment. After receiving the current position of the target movable carrier, the remote server judges the parking place where the target movable carrier is located according to the current position, a parking information base is arranged in the remote server, the information base comprises server information corresponding to each parking place, and the corresponding server information is inquired and fed back. For example: the target movable carrier enters an A1 parking place of a city A area, the current position is sent to the remote server, the remote server determines the parking place of the target movable carrier in the A area according to the current position, and therefore information of the A server corresponding to the A area is sent to the target movable carrier, and the target movable carrier is connected with the A server.
It should be noted that the parking area network map includes an effective coverage range of each internet of things card in the parking lot, where the effective coverage range is an area range in the parking lot where the signal intensity and the bandwidth rate are higher than preset values, for example: the signal intensity of the A Internet of things card in a certain area in the parking place is-80 dBm, the bandwidth rate is 20Mbps, the preset value is-100 dBm, the bandwidth rate is 15Mbps, at the moment, the network condition of the A Internet of things card meets the preset value, and then the area is in the effective coverage range of the A Internet of things card.
Step 303: and establishing a first network connection with the server according to the server information, and switching the first network connection as a main connection so that the server feeds back target network connection information.
It can be understood that the target mobile carrier uses the target internet of things card to establish the first network connection after receiving the information of the server, and switches the first network connection to be the main connection, and after knowing that the connection is established with the internet of things card of the target mobile carrier, the server obtains the current position of the target mobile carrier, determines the parking place where the mobile carrier is currently located according to the current position, and sends the area network map corresponding to the parking place to the target mobile carrier.
It should be noted that, because the internet of things cards with the best network states in different areas of the parking lot may not be the same, if only the same internet of things card is used to maintain network connection, the connection between the internet of things card of the movable carrier and the server may be poor, and when there is a failure in the target network, both networks may not be used, so after step S303, the method further includes:
step S304: and generating a parking instruction according to the current position.
It should be noted that after the target mobile carrier enters the parking area, the parking area needs to be found, so that a parking instruction is generated according to the current position and sent to the server.
Step S305: and sending the parking instruction to the server so that the server determines a target parking area, generates a driving route according to the parking instruction and the target parking area, and feeds back the driving route.
It can be understood that, the nearest parking region in the place is sought according to the current position of the portable carrier of target to the server, and the target parking region promptly parks in the place, parks including a plurality of parking regions in the place, and every parking region is provided with the sensor, when the portable carrier parks to parking region, and the sensor can be with parking information transmission to server, and the server learns the whole information of parking in place according to parking information.
In a specific implementation, the server determines the current position of the target movable carrier according to the parking instruction, generates a driving route according to the current position and the position of the target parking area, and sends the driving route to the target movable carrier.
Step S306: and determining the switching point of the Internet of things card on the driving line according to the parking area network map.
It can be understood that, in order to maintain the connection between the internet of things card and the server, it is necessary to select the internet of things card whose current position network state meets the preset value to establish the connection with the server in order to avoid the need of re-establishing the connection of the internet of things card due to the malfunction of the target network. The parking area network diagram comprises effective coverage areas of the Internet of things cards, and the driving route may penetrate through a plurality of effective coverage areas, so that switching points of the Internet of things cards are determined according to junction points of the effective coverage areas and the driving route. When the effective coverage areas are partially overlapped, the coverage area of the Internet of things card with better network condition is selected as a junction point with the driving route. For example: the effective coverage areas of the A Internet of things card and the B Internet of things card are overlapped, but the average signal intensity in the effective coverage area of the A Internet of things card is-95 dBm, the average bandwidth rate is 20Mbps, the average signal intensity of the B Internet of things card is-90 dBm, and the average bandwidth rate is 25Mbps, so that the junction point of the effective coverage area of the B Internet of things card and a driving route is selected as a switching point.
Step S307: and determining each target Internet of things network section on the driving route according to the Internet of things network card switching point.
It is easy to understand that, a target internet of things network segment is located between two adjacent switching points of the internet of things network, and the corresponding target internet of things network on the target internet of things network segment can be normally connected with the server.
As shown in fig. 3, the driving route passes through the effective coverage Area of the a card (Area-a) and the effective coverage Area of the B card (Area-B), and if the average signal strength and the bandwidth rate in the effective coverage Area of the a card are higher than those in the effective coverage Area of the B card, the boundary of the effective coverage Area of the a card is used as the switching point.
It can be understood that, through the above manner, each target internet of things segment on the driving route is determined through the driving route and the parking area network map, so that the mobile carrier on the form route keeps the optimal network connection of the internet of things, and the safety of automatic driving is further improved.
It should be noted that, since it may be necessary to switch the connection of the target internet of things card on the driving route, and a remote control is usually required in an area with a complex driving environment, such as a parking lot, to ensure the safety of automatic driving, and the switching of the target internet of things card may require re-establishing the connection with the remote control end, after step S307, the method further includes:
step S308: and determining the next target Internet of things card according to the current position and the road sections of the target Internet of things cards.
It can be understood that when the target mobile carrier is in a parking place, the situation of the parking place is complex, and remote support of the remote control end is usually required, and when the first connection of the target internet of things card and the server end is switched, the remote support may need to be reestablished, thereby creating a safety hazard. Therefore, the preparation for remote support in advance is needed according to the next target internet of things card, so that the remote support does not need to be reestablished when the target movable carrier reaches the next target internet of things card section, and the purpose of instantly switching the remote support internet of things card is achieved.
Step S309: and establishing a third network connection between the next target Internet of things card and the server so that the server sends a remote control request to the remote control terminal and feeds back a remote control verification request.
It is easy to understand that, usually, the remote control end needs to select whether to perform remote support according to the situation of the target mobile carrier, and establishing remote support requires a highly safe authentication process, usually with a certain time loss, so that pre-authentication can be performed. Therefore, after the next target Internet of things card is connected with the server side through the third network, the server side can simulate the remote control side to send a remote control verification request to the target movable carrier and send a remote control request to the remote control side, so that the remote control side is connected with the server side in a remote control mode. For example: the method comprises the steps that a target Internet of things card on a current road section is an A card, a target Internet of things card on a next road section is a B card, after a third network connection is established between the B card and a server, the server simulates a remote control end to send a remote verification request with the B card to a target movable carrier, the server simulates the target movable carrier to send a remote control request to the remote control end, the remote control end can establish a remote control connection with the server after receiving the remote control request, and after the remote control end selects to remotely support the target movable carrier, the remote control can directly support without starting a remote support process.
Step S310: and sending the remote control authentication information of the next target Internet of things card to the server according to the remote control verification request so as to enable the remote control end and the next target Internet of things card to establish remote control pre-connection through the server.
It should be noted that after receiving the remote control verification request, the target mobile carrier feeds back the remote control authentication information of the next target internet of things card to the server, so as to complete the process of establishing the remote control connection between the next target internet of things card and the server.
Step S311: and when the target movable carrier reaches the next target Internet of things network segment, switching the third network connection into the first network connection.
It can be understood that, when the target movable carrier reaches the next road segment, the target internet of things card at the current position needs to be switched to the corresponding internet of things card, and because the third network connection is already established, the third network connection only needs to be switched to the first network connection.
It should be noted that, in the above manner, after the next target internet of things card is determined, the server establishes the pre-connection between the remote control end and the next target internet of things card, and when the movable carrier reaches the next target internet of things card segment, the remote control end can directly control the movable carrier without establishing a control connection again, thereby further ensuring the safety of automatic driving.
In the embodiment, the driving route in the parking area is obtained according to the current position and the target parking area, each target internet of things network segment on the driving route is determined according to the network map of the parking area, the corresponding target internet of things network is preset on each internet of things network segment, the network expression condition of the target internet of things network on the segment meets the network requirement of the movable carrier, and the movable carrier establishes remote control pre-connection with the remote control end by using the target internet of things network of the next segment when the movable carrier does not reach the next segment, so that the remote control end can perform remote support at any time during the whole driving process of the movable terminal, the time for establishing remote control connection is not wasted, and the safety of automatic driving is further improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a parking network switching method according to a third embodiment of the present invention.
In this embodiment, after step S305, the method further includes:
step S3051: and controlling the target movable carrier to travel to the target parking area according to the travel route.
It should be noted that, after the target mobile carrier receives the driving route sent by the server, the control terminal on the target mobile carrier may control the target mobile carrier to drive according to the driving route until reaching the target parking area, and complete the parking of the target mobile carrier through an automatic parking function or through remote support of remote control.
Step S3052: and acquiring the area signal bandwidth information of each Internet of things card of the target movable carrier in the target parking area.
It can be understood that, when the target movable carrier is parked in the target parking area, area signal bandwidth information of each internet of things card in the target parking area is detected, where the area signal bandwidth information includes information of signal strength, bandwidth rate, and the like of each internet of things card in the target parking area.
Step S3053: and sending the region signal bandwidth information to the server, so that the server updates the network weight value of each Internet of things card corresponding to the target parking region according to the region bandwidth information, updates the effective coverage range of each Internet of things card in the parking place according to the network weight value and the historical network weight values of other parking regions, and updates the parking region network map according to the effective coverage range.
It can be understood that the target mobile carrier sends the region signal bandwidth information to the parking server, and the parking server updates the network weight value of the target parking region according to the region signal bandwidth information. The network weight value calculation formula may be: and C is x/a + b/y, wherein a is the signal intensity of the internet of things card, x is the preset signal intensity, b is the bandwidth rate of the internet of things card, y is the preset bandwidth rate, and C is a network weight value. For example: the signal intensity of the card A in the parking area is-100 dBm, the bandwidth rate is 15Mbps, the preset signal intensity is-80 dBm, the preset bandwidth rate is 20Mbps, and the network weight value of the card A in the parking area is 1.55.
It should be noted that, according to the historical network weight values calculated according to the signal bandwidth information of each internet of things card when a plurality of mobile carriers are parked in the past, the network weight values and the historical network weight values are added to obtain an average value, so that the current network weight values are updated. For example: and if the historical network weight values are 1.52 and 1.58 and the network weight value is 1.55, the total network weight value is 1.55 through average calculation.
As shown in fig. 5, the network weight values of the a cards in the parking areas C1 through C8 are 1.88, 1.71, 1.51, 1.78, 1.68, 1.49, and 1.53, respectively, a network weight value map of the a cards in the parking Area is generated according to the network weight value presets, and if the preset effective value is 1.60, an effective coverage range of the a card, that is, Area-a, exceeds 1.60.
In this embodiment, by the above manner, after the movable carrier is driven into the parking area, signal bandwidth information of each internet of things card in the parking area is acquired, and an effective coverage area of each internet of things card is generated according to the signal bandwidth west of each parking area in the historical parking place, so as to generate a parking area network map.
Referring to fig. 6, fig. 6 is a flowchart illustrating a parking network switching method according to a fourth embodiment of the present invention.
In this embodiment, after step S50, the method further includes:
step S51: and sending a remote data transmission instruction to the server so that the server sends a remote data transmission request to the remote control terminal and feeds back a remote data transmission verification request.
It should be noted that the server establishes a remote control pre-connection with the remote control end and the target movable carrier, and the remote control connection is used for the remote control end to send a control instruction to the target movable carrier, because the remote control end needs to acquire video data on the target movable carrier when performing remote support, but when the remote control end is in an underground parking place, the network state of the internet of things card may not meet the requirement of video data transmission, and therefore a target network in the parking place needs to be used to establish a remote data transmission connection with the remote control end, and the remote control connection established by the internet of things card is used for transmitting control information, so that the video data and the control information are respectively transmitted, and data coupling is reduced. For example: the method comprises the steps that a card A is currently used for establishing remote control connection with a remote control end, a wireless network card of a movable carrier is connected with the remote control end in a remote data transmission mode through a router in a parking place, the remote control end sends a control command to the card A of a target movable carrier through the remote control connection, and the target movable carrier uses the wireless network card to send surrounding video data to the remote control end through the remote data connection in real time.
Step S52: and sending remote data transmission authentication information to the server side according to the remote data transmission verification request so that the remote control side establishes remote data transmission pre-connection with the target movable carrier through main connection.
It should be noted that, after the target mobile carrier establishes the second network connection with the target network in the parking lot, the second network connection is always used as the main connection in the parking lot, the main connection network is stable, and the data transmission efficiency is high, so that the main connection is used to establish the remote data pre-connection. The remote data transmission pre-connection indicates that the mobile carrier and the remote control end pass verification mutually, but the remote control end does not actually support the target mobile carrier through the remote control end, and when the remote control end needs to remotely support the target mobile carrier, the remote support can be directly carried out without reestablishing the connection.
In the implementation, through the above manner, the target network is used to establish the remote data transmission pre-connection between the movable carrier and the remote control end, so that the data transmission pre-connection is used to transmit the video data of the movable carrier, the remote control pre-connection established by the internet of things is used to transmit the remote control information, and the two network connections are used to perform remote support, thereby reducing the data coupling and increasing the stability of the remote support.
Referring to fig. 7, fig. 7 is a block diagram illustrating a parking network switching apparatus according to a first embodiment of the present invention.
As shown in fig. 7, a parking network switching apparatus according to an embodiment of the present invention includes:
the detection module 10 is configured to detect current signal bandwidth information of each internet of things card on a target movable carrier when the target movable carrier is located in a parking place;
a selecting module 20, configured to select a target internet of things card from the internet of things cards according to the current signal bandwidth information;
the establishing module 30 is configured to establish a first network connection with a server through the target internet of things card, and switch the first network connection to a main connection, so that the server feeds back target network connection information;
an obtaining module 40, configured to detect a currently accessible network and obtain information of the currently accessible network;
a matching module 50, configured to, when the target network connection information is successfully matched with the currently accessible network information, establish a second network connection with the server through the currently accessible network, and switch the second network connection to a primary connection.
In the embodiment, when a target movable carrier is in a parking place, current signal bandwidth information of each internet of things card on the target movable carrier is detected; selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information; establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information; detecting a current accessible network and acquiring information of the current accessible network; and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection. Through the mode, when the movable carrier enters the parking place, the connection with the server side is established according to the Internet of things card with the best network condition, and the server side feeds back the accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, the situation that the movable carrier cannot carry out normal network information due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.
It should be noted that each module in the apparatus may be configured to implement each step in the method, and achieve the corresponding technical effect, which is not described herein again.
Referring to fig. 8, fig. 8 is a schematic diagram of a movable carrier structure of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 8, the movable carrier may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 6 does not constitute a limitation of the movable carrier, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 8, the memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a parking network switching program.
In the removable carrier shown in fig. 8, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the removable carrier of the present invention may be provided in the removable carrier, and the removable carrier invokes the parking network switching program stored in the memory 1005 through the processor 1001, and performs the following operations:
when a target movable carrier is in a parking place, detecting current signal bandwidth information of each Internet of things card on the target movable carrier;
selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information;
establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information;
detecting a current accessible network and acquiring information of the current accessible network;
and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and also perform the following operations:
acquiring a current position of the target movable carrier;
sending the current position to a remote server so that the remote server feeds back server information corresponding to the parking place and a parking area network diagram;
and establishing a first network connection with the server according to the server information, and switching the first network connection as a main connection so that the server feeds back target network connection information.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and also perform the following operations:
generating a parking instruction according to the current position;
sending the parking instruction to the server so that the server determines a target parking area, generating a driving route according to the parking instruction and the target parking area, and feeding back the driving route;
determining an Internet of things card switching point on the driving line according to the parking area network diagram;
and determining each target Internet of things network segment on the driving route according to the Internet of things network switching points.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and further perform the following operations:
controlling the target movable carrier to travel to the target parking area according to the travel route;
acquiring area signal bandwidth information of each Internet of things card of a target movable carrier in the target parking area;
and sending the region signal bandwidth information to the server, so that the server updates the network weight value of each Internet of things card corresponding to the target parking region according to the region bandwidth information, updates the effective coverage area of each Internet of things card in the parking place according to the network weight value and the historical network weight values of other parking regions, and updates the parking region network map according to the effective coverage area.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and also perform the following operations:
determining a next target Internet of things card according to the current position and each target Internet of things card section;
establishing a third network connection between the next target Internet of things card and the server so that the server sends a remote control request to the remote control end and feeds back a remote control verification request;
and sending the remote control authentication information of the next target Internet of things card to the server according to the remote control verification request so as to enable the remote control end and the next target Internet of things card to establish remote control pre-connection through the server.
And when the target movable carrier reaches the next target Internet of things network segment, switching the third network connection into the first network connection.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and also perform the following operations:
sending a remote data transmission instruction to the server side so that the server side sends a remote data transmission request to the remote control side and feeds back a remote data transmission verification request;
and sending remote data transmission authentication information to the server side according to the remote data transmission verification request so that the remote control side establishes remote data transmission pre-connection with the target movable carrier through main connection.
Further, the processor 1001 may call the data transfer program stored in the memory 1005, and also perform the following operations:
acquiring transmission power information of a preset parking place;
setting the transmission power of a target Internet of things card corresponding to the current first network connection as a first transmission power according to the transmission power information of the preset parking place;
and setting the transmission power of other Internet of things cards as second transmission power according to the transmission power information of the preset parking place so as to establish fourth network connection between the other Internet of things cards and the server.
The implementation detects the current signal bandwidth information of each Internet of things card on a target movable carrier when the target movable carrier is in a parking place; selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information; establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information; detecting a current accessible network and acquiring information of the current accessible network; and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection. Through the mode, when the movable carrier enters the parking place, the connection with the server side is established according to the Internet of things card with the best network condition, and the server side feeds back the accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, the situation that the movable carrier cannot carry out normal network information due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a data transmission program is stored on the computer-readable storage medium, and when executed by a processor, the data transmission program implements the following operations:
when a target movable carrier is in a parking place, detecting current signal bandwidth information of each Internet of things card on the target movable carrier;
selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information;
establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information;
detecting a current accessible network and acquiring information of the current accessible network;
and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection.
The implementation detects the current signal bandwidth information of each Internet of things card on a target movable carrier when the target movable carrier is in a parking place; selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information; establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information; detecting a current accessible network and acquiring information of the current accessible network; and when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection. Through the mode, when the movable carrier enters the parking place, the connection with the server side is established according to the internet of things card with the best network condition, and the server side feeds back accessible network information of the parking place, so that the movable carrier is stably connected with the server side through the accessible network, normal network information of the movable carrier due to poor network of a parking area is avoided, and the safety of automatic driving is further improved.
It should be noted that, when being executed by a processor, the computer-readable storage medium may also implement the steps in the method, and achieve the corresponding technical effects, which is not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A parking network switching method, characterized by comprising:
when a target movable carrier is in a parking place, detecting current signal bandwidth information of each Internet of things card on the target movable carrier;
selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information;
establishing a first network connection with a server through the target Internet of things card, and switching the first network connection as a main connection so as to enable the server to feed back target network connection information;
detecting a current accessible network and acquiring information of the current accessible network;
when the target network connection information is successfully matched with the current accessible network information, establishing a second network connection with the server through the current accessible network, and switching the second network connection to be a main connection;
the step of establishing a first network connection with a server through the target Internet of things card and switching the first network connection as a main connection so as to enable the server to feed back target network connection information comprises the following steps:
acquiring a current position of the target movable carrier;
sending the current position to a remote server so that the remote server feeds back server information corresponding to the parking place and a parking area network diagram;
and establishing a first network connection with the server according to the server information, and switching the first network connection as a main connection so that the server feeds back target network connection information.
2. The method of claim 1, wherein after the step of establishing the first network connection with the server according to the server information and switching the first network connection to be a primary connection so that the server feeds back the target network connection information, the method further comprises:
generating a parking instruction according to the current position;
sending the parking instruction to the server so that the server determines a target parking area, generating a driving route according to the parking instruction and the target parking area, and feeding back the driving route;
determining an Internet of things card switching point on a driving line according to the parking area network diagram;
and determining each target Internet of things network segment on the driving route according to the Internet of things network switching points.
3. The method according to claim 2, wherein after the step of sending the parking instruction to the server to enable the server to determine a target parking area, generating a driving route according to the parking instruction and the target parking area, and feeding back the driving route, the method further comprises:
controlling the target movable carrier to travel to the target parking area according to the travel route;
acquiring area signal bandwidth information of each Internet of things card of a target movable carrier in the target parking area;
and sending the region signal bandwidth information to the server, so that the server updates the network weight value of each Internet of things card corresponding to the target parking region according to the region bandwidth information, updates the effective coverage area of each Internet of things card in the parking place according to the network weight value and the historical network weight values of other parking regions, and updates the parking region network map according to the effective coverage area.
4. The method as claimed in claim 2, wherein after the step of determining each target internet of things card segment on the driving route according to the internet of things card switching point, further comprising:
determining a next target Internet of things card according to the current position and each target Internet of things card section;
establishing a third network connection between the next target Internet of things card and the server so that the server sends a remote control request to a remote control end and feeds back a remote control verification request;
sending remote control authentication information of the next target Internet of things card to the server according to the remote control verification request so that the remote control end and the next target Internet of things card establish remote control pre-connection through the server;
and when the target movable carrier reaches the next target Internet of things network segment, switching the third network connection into the first network connection.
5. The method as claimed in claim 4, wherein after the step of establishing a second network connection with the server via the current accessible network and switching the second network connection to a primary connection when the target network connection information and the current accessible network information are successfully matched, the method further comprises:
sending a remote data transmission instruction to the server side so that the server side sends a remote data transmission request to the remote control side and feeds back a remote data transmission verification request;
and sending remote data transmission authentication information to the server side according to the remote data transmission verification request so that the remote control side establishes remote data transmission pre-connection with the target movable carrier through main connection.
6. The method of claim 5, wherein after the steps of establishing a second network connection with the server through the current accessible network and switching the second network connection to a primary connection when the target network connection information and the current accessible network information are successfully matched, the method comprises:
acquiring transmission power information of a preset parking place;
setting the transmission power of a target Internet of things card corresponding to the current first network connection as a first transmission power according to the transmission power information of the preset parking place;
and setting the transmission power of other Internet of things cards as second transmission power according to the transmission power information of the preset parking place so as to establish fourth network connection between the other Internet of things cards and the server.
7. A parking network switching apparatus, characterized by comprising:
the detection module is used for detecting the current signal bandwidth information of each Internet of things card on the target movable carrier when the target movable carrier is in a parking place;
the selection module is used for selecting a target Internet of things card from all Internet of things cards according to the current signal bandwidth information;
the establishing module is used for establishing first network connection with a server through the target Internet of things card and switching the first network connection as a main connection so as to enable the server to feed back target network connection information;
the acquisition module is used for detecting a current accessible network and acquiring the information of the current accessible network;
the matching module is used for establishing a second network connection with the server through the current accessible network and switching the second network connection to be a main connection when the target network connection information is successfully matched with the current accessible network information;
the establishing module is further used for acquiring the current position of the target movable carrier; sending the current position to a remote server so that the remote server feeds back server information corresponding to the parking place and a parking area network diagram; and establishing a first network connection with the server according to the server information, and switching the first network connection as a main connection so that the server feeds back target network connection information.
8. A movable carrier, characterized in that the movable carrier comprises: a memory, a processor and a parking network switching program stored on the memory and executable on the processor, the parking network switching program being configured to implement the steps of the parking network switching method according to any one of claims 1 to 6.
9. A storage medium, characterized in that a parking network switching program is stored on the storage medium, and the parking network switching program, when executed by a processor, implements the steps of the parking network switching method according to any one of claims 1 to 6.
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